【正文】
系統(tǒng)中,默認(rèn)安裝 DHCP 服務(wù)的配置文件為 ( 33) 。 ( 34) A.具有完全控制權(quán) B.具有用戶訪問(wèn)權(quán)和來(lái)賓訪問(wèn)權(quán) C.僅具有來(lái)賓訪問(wèn)權(quán) D.僅具有用戶訪問(wèn)權(quán) 參考答案: ( 34) B ● Wind ows Server 2020 采用了活動(dòng)目錄( Active Directory)對(duì)網(wǎng)絡(luò)資源進(jìn)行管理,活動(dòng)目錄需安裝在 ( 35) 分區(qū)。 ( 36) A. Samba C. SMTP D. Tel 參考答案: ( 36) A ● 以下關(guān)于 DHCP 協(xié)議的描述中,錯(cuò) 誤的是 ( 37) 。 ( 38) A.該 PC機(jī) IP地址的租約期為 8小時(shí) B.該 PC訪問(wèn) Web網(wǎng)站時(shí)最先查詢的 DNS 服務(wù)器為 C.接口 和 之間使用了 DHCP 中繼代理 D. DHCP 服務(wù)器 可供分配的 IP 地址數(shù)只能為 61 參考答案: ( 38) D ● 在 Windows 系統(tǒng)中需要重新從 DHCP 服務(wù)器獲取 IP地址時(shí),可以使用 ( 39) 命令。 ( 40) A. POP3 B. SMTP C. FTP D. DNS 參考答案: ( 40) D ● 按照 RSA算法,若選兩奇數(shù) p=5, q=3,公鑰 e=7,則私鑰 d為 ( 41) 。 ( 42) A. getrequest B. setrequest C. getresponse D. trap ( 43) A. 160 B. 161 C. 162 D. 163 參考答案: ( 42) A( 43) B ● Windows 系統(tǒng)中,路由跟蹤命令是 ( 44) 。 ( 45) A. 56 B. 128 C. 160 D. 168 ( 46) A. 56 B. 128 C. 160 D. 168 參考答案: ( 45) B( 46) C ● 下列隧道協(xié)議中工作在網(wǎng)絡(luò)層的是 ( 47) 。 ( 48) A. DES B. 3DES C. IDEA D. AES 參考答案: ( 48) D ● 公鑰體系中,私鑰用于 ( 49) ,公鑰用于 ( 50) 。 公鑰和私鑰都可以用于加密和解密的,公鑰加密的數(shù)據(jù)只有私鑰可以解密,同樣私鑰加密的數(shù)據(jù)只有公鑰可以解密。 在公鑰體系中,由于公鑰是允許自由下載的,因此稱私鑰用于解密和簽名,公鑰用于加密和驗(yàn)證也是可以的。 ( 51) A. . C. . 參考答案: ( 51) A ● 如果子網(wǎng) ,則下面的結(jié)論中正確的是 ( 52) 。 ( 53) A. B. C. D. 參考答案: ( 53) D ● IP 地址 ( 54) 。 ( 55) A. 和 B. 和 C. 和 D. 和 參考答案: ( 55) C ● 在交換機(jī)上同時(shí)配置了使能口令( enable password)和使能密碼( enable secret),起作用的是 ( 56) 。 ( 57) A. 2950(config) defaultgateway B. 2950(configif) defaultgateway C. 2950(config)ip defaultgateway D. 2950(configif)ip defaultgateway 參考答案: ( 57) C ● 在路由器配置過(guò)程中,要查看用戶輸入的最后幾條命令,應(yīng)該鍵入 ( 58) 。 ( 59) A.中繼連接 B.接入鏈路 C.控制連接 D.分支鏈路 參考答案: ( 59) A ● 要實(shí)現(xiàn) VTP 動(dòng)態(tài)修剪,在 VTP 域中的所有交換機(jī)都必須配置成 ( 60) 。 ( 61) A. 2950(config) vtp pruning B. 2950 vlan database C. 2950(config) vtp server D. 2950(config) vtp mode 參考答案: ( 61) B ● 以太網(wǎng)協(xié)議可以采用非堅(jiān)持型、堅(jiān)持型和 P堅(jiān)持型 3 種監(jiān)聽(tīng)算法。 ( 62) A.堅(jiān)持型監(jiān)聽(tīng)算法的沖突概率低,但可能引入過(guò)多的信道延遲 B.非堅(jiān)持型監(jiān)聽(tīng)算法的沖突概率低,但可能浪費(fèi)信道帶寬 C. P堅(jiān)持型監(jiān)聽(tīng)算法實(shí)現(xiàn)簡(jiǎn)單,而且可以到達(dá)最好性能 D.非堅(jiān)持型監(jiān)聽(tīng)算法可以及時(shí)搶占信道,減少發(fā)送延遲 參考答案: ( 62) B ● 以太網(wǎng)幀格式如下圖所示,其中的 “ 長(zhǎng)度 ” 字段的作用是 ( 63) 。 ( 64) A. 100BASEFX B. 100BASET4 C. 100BASETX D. 100BASET2 參考答案: ( 64) C ● 用于工業(yè)、科學(xué)和醫(yī)療方面的免許可證的微波頻段有多個(gè),其中世界各國(guó)通用的 ISM 頻段是 ( 65) 。 ( 66) A. IEEE B. IEEE C. IEEE D. IEEE 參考答案: ( 66) A ● 網(wǎng)絡(luò)系統(tǒng)生命周期可以劃分為 5個(gè)階段,實(shí)施這 5個(gè)階段的合理順序是 ( 67) 。 ( 68) A.核心層承擔(dān)訪問(wèn)控制列表檢查 B.匯聚層定義了網(wǎng)絡(luò)的訪問(wèn)策略 C.接入層提供局域網(wǎng)絡(luò)接入功能 D.接入層可以使用集線器代替交換機(jī) 參考答案: ( 68) A ● 網(wǎng)絡(luò)系統(tǒng)設(shè)計(jì)過(guò)程中,邏輯網(wǎng)絡(luò)設(shè)計(jì)階段的任務(wù)是 ( 69) 。 ( 70) A. 4 B. 63 C. 255 D. 1023 參考答案: ( 70) B ● The metric assigned to each work depe nds on the type of simple protocol, like RIP, treats each work as ( 71) of passing through each work is the same。 rule around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party anizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process。 the third part introduces two party regulations modified the main changes and needs to grasp several key problems。 follow the correct direction, grasp the limited goals, adhere to the party39。s 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the party39。 the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements。 the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of countylevel leading cadres above. rule is in 1997 Chinese Communist Party disciplinary cases (Trial) based on revision, in December 2020 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the prehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition。 third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to the criterion of a clean and honest administration and rule the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party passes party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2020 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party mittee, Secretary of the Discipline Inspection Comm